Roller skate



'Feh 631923. .1'L,M14,m3i

R. PETERSON.

ROLLER SKATE.

FILED MAR.10.1921.

f1.. i i

STTES nnnonrrr rn'rnnson, or nn kann, rrmrnors, Assrenon To KOHLER DIE a SPECIALTY COMPANY, OF DE BALB, IELLINOIS, A. COR/PORATON F ILLINOIS.

norman SKATE.

Application filed March 10, 1921.

'o all whom it may concern lie it known that l, RUDOLPH Pn'rnnsoc, a citizen of the United States, residing at Kalb, in the county of De Kalb and State of illinois, have invented certain new and useful Improvements in Roller Skates, of which the following is a specification.

rhis invention relates to roller skates but more particularly to the extensible type, and has for its primary object to produce a simplied and improved construction providing increased strength, rigidity and durability.

The present invention is particularly an improvement on the skate construction shown and described in United States patents granted to Thomas Spacie Nos. 91.T ,i199 and .E ,208,681 of April 6, 1909 and December 12, 1916 respectively, and reference may be had thereto for a. more complete description of the general skate construction.

rl`he further objects and advantages of my invention will be better understood by reference to the following specification when considered in connection with the accompanying drawincg illustrating a selected ern bodiment thereof, in which Fig. 1 is al side elevation of a roller skate embodying my invention complete..

Fig. 2 is a bottom plan view of the forward skate member.

Figs. 3 and -i are sections respectively on the lines 3 8 and 4-4 of Fig. 1, and

Fig. 5 is a perspective view of the rear brace of the forward skate member.

Referring to the drawing, the skate comprises a sole plate 5 and a heel plate 6 connected by the extension bar 7. Thisibar has its rear end permanenly secured to the heel plate 6 and the front end thereof is adapted to be adjustably secured to the sole plate 5 to permit variation in the length of the skate.

The forward rollers 8 are mounted upon an axle 9 supported by a cradle .10. A cushion 11 of resilient material is held between the front and rear parallel lugs .12 having aligned apertures to receive the pivot pin 18. A cap 1e lits over the cushion l1 and is provided with slots 15 and 16 through which project the lower extremities of the front and rear braces 17 and 18 respectively. The pivot pin 13 passes through perforations in these braces.

The rear brace 18 is secured to the sole plate 5 by rivets 21 or other suitable means.

Serial No. 451,236.

The upper portion of this brace extends rearwardly beneath the plate and a channel 22 is formed in .its upper face ink alignment with an opening23 in the front brace 17 to admit the forward portion of the bar 7 -This bar is slidable longitudi-` port the forward portion of the bar. 4'llherear -portion of this plate was secured to the under face of the sole plate by rivets and the forward end projected into the opening in the upper end of the rear brace which admitted the bar. This construction proved a serious source of weakness in theskate on account of the severe strain upon these parts produced by the leverage of the bar, particularly when the skate was extended Sufiiciently to withdraw the bar from the opening in the rear brace. Furthermore, lthis form of anchor plate failed to produce the necessary rigidity in the connection between the front and rear skate members. By eX- tending the rear brace and forming the the channel for the bar in this brace, the portion of the brace connecting the sole plate and the pivot pin is strengthened and its rigidity very materially increased. In the same manner the portion of the brace performing the function of the anchor plate provides a far stronger and more rigid support for the extension bar, as will be readily evident.

In addition to the increase in strength an d rigidity provided by the extended rear brace, the cost of production of the skate is mate'- rially reduced. This brace may be readily formed from sheet metal by a single operation of the press. All rivets for connecting this brace to the sole plate may be applied in a single operation. The horizontal eX- tension 0f the rear brace forms a trust con* struction supporting` the sole plate which materially strengthens this plate. Likewise the connection of the rear brace to the sole plate at widely spaced points rigidly posibrace and nut and is adapted to engage the tions this brace and lthusstrerlgtlfiene the en- ,f

tire support Yfor the Afront axle.

l am aware that changes may be inade in theyconstrnet-ion anch-arrangement of the parts withoutdeparting from thespirit f of niy invention and l reserve the right to make al1 such as fairly fall within the scope.

or the following claims.

I claim:

l. In a rollerl slrate`a sole plate, a heel plate, an yextensionV bar-"rigidly :secured to saidheel plate and` projecting4 forwardly thereirorn to form a connectionbetween said.

lates` a front axle andsu ortinorneans i'or .said axle including` frontand Lrear braces,

saidrear brace being provided with a rearwardly u prrqecting substantially channel yshaped extension forming with said sole means forl said axleincluding'front and rear braces secured to said sole plate-, said rear brace being rprovided with ane integral cliannel-shapedextension projectingrearwardly ,-beneathqv-sad sole plate andhaving its rear sole plate and connected at its lower end to said axle7 and a substantially.horizontal por-- tion projecting rearwardly from said vertical portion'and having its rearend secured to said sole plate at an interval from the point or' fastening of saidv vertical portion.

el. ln a roller skate,a sole plate, af heel plate, an extension bar secured'to said heel plate and' projecting forwardly therefrom to iforrn a connection betweensaid platea a front` axle, and snpportingnieans for said axle including'ront and rear braces, said rear brace beingY connectedsubstantiallyat its upper end to said sole plate vand having a substantially channel shaped extension projecting rearwardly beneath the sole plate from said conneetionto forni with said sole plate a socket to receive the Vorwardlyvprojecting portiono said bar. 'f

RUDLPH PETERSON.' 

